000 00249nam a2200073 4500
080 _a
_b
245 _aIS: 1448 (P 138) - 1982; methods of test for petroleum and its products P 138 determination of soap content
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1992
300 _a3p
999 _c34075
_d34075